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Wisconsin Game Fish Identification

Wisconsin Game Fish Identification. Caudal Fin. Dorsal Fin. Operculum. Pectoral Fin. Anal Fin. Pelvic Fin. Bluegill. 1/2 as deep as long under 1” thick blue color on lower portion of both the jaw and operculum Color is NOT a good way to identify. Dark round spot on the rear dorsal fin

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Wisconsin Game Fish Identification

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  1. Wisconsin Game Fish Identification

  2. Caudal Fin Dorsal Fin Operculum Pectoral Fin Anal Fin Pelvic Fin

  3. Bluegill

  4. 1/2 as deep as long under 1” thick blue color on lower portion of both the jaw and operculum Color is NOT a good way to identify Dark round spot on the rear dorsal fin 5-9 dark vertical bands running down their sides. Bluegill

  5. Pumpkinseed

  6. Lateral facial markings Scarlet spot on opercle flap 7-8 dark vertical bands Very similar to bluegill Very colorful, but color is a poor ID indicator. Pumpkinseed

  7. Red Eared Sunfish

  8. Produced from a Bluegill and Pumpkinseed crossbreeds. Looks very similar to Bluegill or Pumpkinseed, but slight differences. Red Eared Sunfish

  9. Crappie

  10. Both Black and White (black = 7-8 dorsal spines, white = 6 dorsal spines.) Mottled Markings Color is not a good identification indicator Very thin, perhaps the thinnest of all sunfish 8-10 inches is common Crappie

  11. Yellow Perch

  12. Golden Yellow Coloration on their sides. (may vary) 6-8 dark vertical bands along their sides have two dorsal fins, membrane between the two is black caudal fin is slightly rounded and forked 3.5 times as long as deep unlike walleyes, they do not have canines Yellow Perch

  13. Largemouth Bass

  14. Largemouth Bass • Upper jaw extends beyond the eye • Deep notch in dorsal fin • Caudal fin is forked and rounded • Golden-brown eye • Dark, irregular horizontal stripe along lateral line

  15. Smallmouth Bass

  16. Smallmouth Bass • Upper jaw does not extends beyond the eye • Slight notch in dorsal fin • Caudal fin is not forked and not rounded • Red eye • Dark, vertical stripe along sides

  17. White Bass

  18. White Bass • Brown eye • Silver color • many dark, horizontal lines along the sides

  19. Rock Bass

  20. Rock Bass • Brown eye • Brown coloration, with light vertical stripes along the sides

  21. Walleye

  22. Walleye • Canines along the lower jaw • irregularly-shaped vertical blotches along sides • Upper half of body has mottled vertical stripes • Dark blotch on back of anterior dorsal fin, no spots on dorsal fin • Silvery, opaque marble eyes that glow in the dark • White tip on lower edge of caudal fin

  23. Sauger

  24. Sauger • Very similar to a walleye • spots on the anterior dorsal fin, no black blotch at the back of anterior dorsal • no white tip on low caudal fin

  25. Northern Pike

  26. Northern Pike • Hard-muscled, tube-shaped fish with elongated body and a flat, duckbill snout • light, bean-shaped markings that run the length of the body in horizontal rows • Tiger-striped fins • Rounded caudal, pelvic and pectoral fins • Scales cover the cheek and upper half of the operculum • 5-7 pores on each side of lower jaw

  27. Muskellunge

  28. Muskellunge • Hard-muscled, tube-shaped fish with elongated body and a flat, duckbill snout • vertical stripes along each side of the fish • Tiger-striped fins • Pointed caudal, pelvic and pectoral fins • No scales on the cheek and upper half of the operculum • 6-9 pores on each side of lower jaw

  29. Brook Trout

  30. Brook Trout • Has an elongated and compressed body • squared-tail • wormlike markings on back and head • red spots along the side of their bodies with blue halos. • Lower fins have a white leading edge, followed by a black border

  31. Brown Trout

  32. Brown Trout • “X” shaped markings on back and upper half of their body • squared tail • numerous small spots on the head • inside of the mouth is white • 10-12 anal rays

  33. Rainbow Trout

  34. Rainbow Trout • Many small spots on the body • Distinctive pink horizontal stripe down each side of the body • squared tail with spots • 10-12 anal rays

  35. Lake Trout

  36. Lake Trout • Silvery color with irregular wormlike markings on back and dorsal fin • Light spots in body and tail • deeply forked tail with spots on edge leading to the body • 10-11 rays in their anal fin • inside of mouth is white

  37. Chinook Salmon

  38. Chinook Salmon • Some black spots on upper half of body • grey-black mouth, with teeth set in black gums • squared tail with spots on both halves • 15-19 anal rays

  39. Coho Salmon

  40. Coho Salmon • Small black spots on backs, sides above the lateral line, base of dorsal fin, and upper half of caudal fin. • Inside of mouth is grey or black, with teeth set in white gums • Slightly forked tail • 12-15 anal rays

  41. Lake Sturgeon

  42. Lake Sturgeon • Torpedo-shaped body, turned up tail • Resembles a shark • Five rows of shell-shaped plates along back • notochord instead of backbone • Mouth is on underside of body with barbels

  43. Channel Catfish

  44. Channel Catfish • Scaleless, tough skin • 8 barbels • Three sharp spines, (1 dorsal, 2 pectoral) • Black spots on lower side of body • Deeply forked caudal fin

  45. Flathead Catfish

  46. Flathead Catfish • Scaleless, tough skin • 8 barbels • Three sharp spines, (1 dorsal, 2 pectoral) • No spots on lower side of body • squared caudal fin • flattened head • lower lip protrudes past upper lip

  47. Yellow Bullhead

  48. Yellow Bullhead • Black, Brown or Yellow species • Scaleless, tough skin • 6 barbels • Sharp spines (1 dorsal, 2 pectoral) • Caudal fin is slightly notched and squared

  49. Carp

  50. Carp • Rough fish • Very scaly • Barbels • Much like a sucker

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